Ian Appru wrote:
While atomic increment/decrements (using cas) are suffiently well documented
for me to be pretty confident in my implementation I would apreciate any input
for an atomic conditional increment.
I'd expect the following to work on OpenSolaris:
#include <atomic.h>
int atomic_conditional_increment(int *target)
{
for (;;) {
int old = *target;
if (old == 0)
return 0;
if (atomic_cas_uint((uint_t *) target, old, old + 1) == old)
return old + 1;
}
}
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